Presser-foot for sewing-machines.



A. L. HARRISON.

P-RESSER FOOT FOR SEWING MACHINES.

APPLICATION- FILED MAY 5, 1914.

m y Patented July '13, 1915.

WWM% I 4n. ALI" l l. ryr

ALEXANDER LEE HARRISDN, UNION CITY, TENNESSEE.

lERlilSSER-JFOOT F011, SElKTING-MACHINES.

Application filed May 5, 1914. Serial No. 836,474.

T all "whom it may concern llc known that l, A uKANDlCR Lnn HAR- RISON,acitizen ot' the United States, residing at llnion City, in the countyof Obion and Suite of "lenncssee, have invented certain new and usefulmyovemcnts in Presser- Fect for Fiewing-lllachiues; and I do herebydeclare the following; to be a full, clear, and exact description of theinvention, such as "ill enable others skilled in the art to which itappertains to make and use the same.

lily invention relates to improvements in sewing machines, andparticularly to that part of sewing machines known as presser feet. Thepresent improvements beingespecially adaptable for use in connectionwith machines employed in the sewing" of mm terial which has beenpreviously treated with a water proofing or like substance.

lt has been found that after fabric has been treated with a waterproofing com pound or other adhesive substance, that the same is sewedand made into ditlerent forms with extreme ditliculty, owing to the factthat the needle or needles of the machine after passing through thegoons a comparatively few number of times, becomes gummed with the waterproofing or like substance thereby destroying the f ed and tension ofthe machine and also'greatly reducing the speed thereof. In fact it hasbeen found to be almost impossible to work with goods of the characterdescribed, in a satisfactory manner without in some way overcoming P theobjections above noted.

It is, therefore, the object of this invention to construct a presserfoot provided with means whereby the disarrangement of the feed andtension of the machine is avoided, and at the same time a high rate ofspeed maintained throughout the sewing operation.

With this and other objects in View which will become apparent from thefollowing description, this invention consists of a prcsser footprovided at its forward end with mains-whereby oil. or other lubricantis fed continuously and automatically to the needle or needles of themachine, thereby preventing any gumming thereof; any disarrangcmcnt ofthe feed or tension of the machine, or any reduction in speed of thesame.

For the purpose of explaining" coy-invention have illustrated in theaccompanying drawings, a satisfactory reduction of the closed in theaccompanying drawings, 5-

designates the shank of the presser foot, which 1S adapted to beconnected in, any suitable manner to a presser bar of the usual type.The shank 5 is shown provided integrally with 21v fulcrum block 6, saidfulcrum block (3 extending between lugs 7 positioned on the foot plate8, the same being held in pivotal engagement therewith by means of a.transverse pivot pin 9. The foot plate 8 may be of any desired form, andis shown in the drawings provided with the usual needle apertures orslots 10 and the upturning outer portion 11 adapted to en-. gage andgradually guide the goods smoothly under the needle or needles of themachine.

Mounted preferably in the vertical plane upon the outer portion 11 ofthe foot plate 8, is-a socket member 12, preferably of conical form, andopen at its end portions, said socket member 12 being adapted to receiveand frictionally retain. therein an absorbent medium, 13, such as felt,cotton or the like. As will be seen from Fig. 1 the socket member 12 isslightly beveled at its lower end 14: in order to conformsubstantially'to the contour of the outer upturned portion 11 oi. thefoot plate 8.

in actual practice the absorbent medium, 13, is saturated with oil orother lubricating substance and is then placed in the socket member 12,substantially filling the same, It will thus be seen that as the goods,previously treated with a water proofing substance or the like, passunder the foot plate 8, they will receive automatically, through theforces of gravity and capillary "attraction a constant supply of thelubricant from the socket member 12. The goods thus diled will, uponcoming into contact with the needle or needles of the machine, lubricatethe same, thus preventing an accumulation thereon of the adhesive, Waterproofing substance. l't been tound that through the use of this deviceas above described, an

machine. It will be noted from the foregoing that the material saturatedwith the lubricant and adapted to bear against the fabric as the same isfed into the machine,

could be mounted on the foot plate in many different ways, for instancethe saturated lnateri'al could be used alone instead of being used inconnection with the socket memher, but the construction as shown anddescribed is preferable. It is also obvious that this invention is notlimited to the precise construction shown in the drawings, as variousmodifications and alterations may be made therein, by; one skilled inthe art,

.within the scope of the appended claims. It

is also evident that the device as described is not only adapted for usewith a presser foot of the type shown, but that it may be used inconnection with any presser foot now in use.

- I claim 1. In combination with a p'resser foot of a sewing. machine,of a conical socket member mounted on said presser foot and adapted tosupport and retain an absorbent medium, said socket member being openedat its lower end to permit of a contact between the absorbent medium andthe fabric as the same is fed under said presser foot.

2. A presser foot of the class described comprising means for supportingand retaining an absorbent medium, the lower end of said meansconforming substantially to the contour of the under face of theupturned portion of said presserfoot.

3. In a presser foot for sewing machines of the fiat foot type, having ahinged foot plate, an absorbent medium adapted to be impregnated with alubricant, a tube-like member disposed upon the forward end of saidplate to retain said absorbent material, I

over inequalities of thicknesses of the fabrics, a tapered tube-likemember mounted upon the forward end of said foot plate, absorbentmaterial adapted tobe impregnated with a lubricant and disposed withinsaid tube-like member, said foot plate having an upward curve at itsforward end, and means for placing the lubricant upon the fabric orfabrics as it passes beneath the forward end of said hinged. foot plate.

5. In an attachment of the class described, a presser foot having anupturned portion, a. conical socket adapted to support an absorbentmedium mounted thereon, the lower end of said-socket member extendingbelow the surface of the upturned portion of said presser foot andconforming substantially to the contour of said upturned portion.

In testimony whereof, I ah'ix my signature, in presence of twowitnesses.

ALEXANDER LEE HARRISON. Witnesses:

T. C. Hanmson, C. E. Emerson.

